MAX17048 LiPoly - LiIon Fuel Gauge and Battery Monitor Breakout

The 7Semi MAX17048 Fuel Gauge Module is a high-accuracy lithium battery monitoring solution designed for single-cell Li-Ion and LiPo battery-powered applications. Built around the Maxim Integrated MAX17048 fuel gauge IC, this compact module provides real-time battery State of Charge (SOC), battery voltage measurement, charge/discharge rate estimation, and programmable battery alerts through a simple I2C interface. Unlike traditional fuel gauge solutions that require current sensing resistors and complex calibration procedures, the MAX17048 utilizes the advanced ModelGauge™ algorithm to deliver highly accurate battery capacity estimation while minimizing hardware complexity.

This battery fuel gauge breakout board is ideal for portable electronics, IoT devices, wearable electronics, battery-powered sensors, wireless products, robotics, handheld instruments, smart home systems, medical devices, and embedded development projects. The onboard JST battery connectors make battery integration simple, while the exposed I2C pins allow seamless connectivity with Arduino, ESP32, STM32, Raspberry Pi, RP2040, and other microcontroller platforms. The module continuously tracks battery condition and remaining capacity, helping developers create reliable battery-powered products with improved user experience and power management capabilities.

The MAX17048 employs Maxim's industry-leading ModelGauge technology, eliminating the need for battery learning cycles and current-sense resistors commonly found in conventional fuel gauge systems. The device automatically enters ultra-low-power hibernate mode during periods of low battery activity, reducing current consumption to as low as 3µA while maintaining accurate fuel gauging performance. Integrated low-battery alerts, voltage threshold monitoring, battery insertion detection, and charge/discharge rate reporting make this module an excellent choice for advanced battery monitoring applications where efficiency, accuracy, and low power consumption are critical requirements.

Features

• Based on Maxim Integrated MAX17048 Fuel Gauge IC
• Designed for single-cell Li-Ion and LiPo batteries
• Advanced ModelGauge™ battery estimation algorithm
• Accurate State of Charge (SOC) monitoring
• High-precision battery voltage measurement
• No external current sense resistor required
• No battery learning cycle required
• Ultra-low power consumption design
• Hibernate current as low as 3µA
• Active current consumption approximately 23µA
• I2C communication interface up to 400kHz
• Programmable low battery alert output
• Battery insertion detection capability
• Charge and discharge rate reporting
• Voltage monitoring and threshold alerts
• Quick-start battery estimation support
• Automatic hibernate mode operation
• Compact form factor for embedded applications
• Compatible with Arduino, ESP32, STM32 and Raspberry Pi
• Suitable for portable and battery-powered products